i7-4790 equivalent to i3-8100?

Friend of mine currently own a FX-8350 and wants to upgrade. She found a used i7-4790 (non ‘K’) + motherboard (not sure of chipset or model) for $200 even. GPU userbench states that the i3-8100 has a 6% performance lead. Is that a gaming comparison or something else? (link below) GPU userbenchmark i7-4790 vs i3-8100 http://cpu.userbenchmark.com/Compare/Intel-Core-i7-4790-vs-Intel-Core-i3-8100/2293vs3942 FYI : I’m not a fan of purchasing an EOL platform, hence why I’d rather find justification for her to buy coffee lake.